Auckland Transport releases Airport Rail Methodology
At the beginning of the year when it was revealed Auckland Transport were to pursue Light Rail via Dominion Road to the Airport rather than Heavy Rail via either Onehunga or Otahuhu. As a result I filed a Local Government Official Information and Meetings Act (LGOIMA) request for the full methodology leading to the preference for Light Rail.
Auckland Transport have released both the methodology and the video via the LGOIMA today.
You can read the full methodology below:

Red = LRT proposal by Auckland Transport
Black = Heavy Rail Route proposal
Black dash = Via Mangere route to Airport instead of Onehunga
Yellow = LRT to Manukau as part of Botany Line
I will look at the report later on today and provide a full write up tomorrow. And yes I still support Heavy Rail to the Airport via Otahuhu:

Two – Four trains per hour in each direction (clockwise and counter clockwise) giving a total of 4 trains an hour to and from the Airport and Britomart
Started watching the video Ben, got very annoyed and didn’t read the report. Seems the Light Rail option services the Auckland Isthmus and completely ignores the needs of South Auckland. Long term it seems to me that a heavy rail feeder loop that transects those suburbs with no rail access and runs past the airport, would be a better long term solution. I’d wager right here and now that a traffic flow study would support anecdotal evidence that the biggest road traffic issues are from the south.
Oh I would highly recommend reading the report.
In short the multi agency report states that things should proceed with Heavy Rail not Light Rail
Auckland Transport are defying the report and logic….